Bridge rectifier

Description

Bridge rectifier Features And Applications

Bridge rectifier stacks are a wide range of power components. Used in a variety of power supply equipment. The internal is mainly a bridge composed of four diodes to convert the input AC voltage into the output DC voltage.
Bridge rectifier can be divided into GPP bridge rectifier and O/J bridge rectifier
During each duty cycle of the bridge stack, only two diodes operate at the same time, and the unidirectional conduction function of the diode converts the alternating current into a unidirectional DC ripple voltage. Dissection of the commonly used low-power bridge stack reveals that the full-wave bridge stack uses a plastic package structure (most low-power bridge stacks are in this package). The four main heating components in the bridge – the diodes are divided into two sets of pin copper plates placed on the DC output. There are two connected copper plates between the DC output pin copper plates, which are respectively connected to the input pins (AC input wires) to form a full-wave bridge stack with four external connection pins that we see on the outside. Since the series of bridge stacks are all in a plastic package structure, the above-mentioned diodes, lead copper plates, connecting copper plates and connecting wires are filled with an insulating and heat-conductive skeleton filling material – epoxy resin. However, the thermal conductivity of epoxy resin is relatively low (typically 0.35 ° CW / m, the highest is 2.5 ° CW / m), so the junction – shell thermal resistance of the Bridge rectifier stack is generally large (usually 1.0 ~ 10) °C/W).

Dongguan Xuansn Electronic Tech Co., Ltd., founded in 2004, is engaged in the manufacture of electrolytic capacitors. And sell all kinds of electronic components: ceramic capacitors, MLCC, film capacitors, solid capacitors, super capacitors, resistors, diodes, transistors, fuses, inductors, bridge rectifiers, varistors, thermistors.
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